Version: 2022.2

ImageConversion.EncodeNativeArrayToJPG

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public static NativeArray<byte> EncodeNativeArrayToJPG (NativeArray<T> input, Experimental.Rendering.GraphicsFormat format, uint width, uint height, uint rowBytes, int quality);

参数

input 要转换的原生数组。
format 图像数据的像素格式。
width 图像数据的宽度(以像素为单位)。
height 图像数据的高度(以像素为单位)。
rowBytes The length of a single row in bytes. The default is 0, which means Unity calculates the length automatically.
quality JPG quality to encode with. The range is 1 through 100. 1 is the lowest quality. The default is 75.

描述

将原生数组编码为 JPG 格式。

This function returns a NativeArray<byte> which is the JPG data. You can store the encoded data as a file or send it over the network without further processing.

This function does not work on any compressed format. The encoded JPG data will be either 8bit grayscale, RGB or RGBA (depending on the passed in format).

This method is thread safe.

// Saves screenshot as JPG file.
using System.Collections;
using System.IO;
using Unity.Collections;
using UnityEngine;

public class JPGScreenSaver : MonoBehaviour { // Take a shot immediately IEnumerator Start() { yield return SaveScreenJPG(); }

IEnumerator SaveScreenJPG() { // Read the screen buffer after rendering is complete yield return new WaitForEndOfFrame();

// Create a texture in RGB24 format the size of the screen int width = Screen.width; int height = Screen.height; Texture2D tex = new Texture2D(width, height, TextureFormat.RGB24, false);

// Read the screen contents into the texture tex.ReadPixels(new Rect(0, 0, width, height), 0, 0); tex.Apply();

// Encode the bytes in JPG format NativeArray<byte> imageBytes = new NativeArray<byte>(tex.GetRawTextureData(), Allocator.Temp); var bytes = ImageConversion.EncodeNativeArrayToJPG(imageBytes, tex.graphicsFormat, (uint)width, (uint)height); Object.Destroy(tex);

// Write the returned byte array to a file in the project folder File.WriteAllBytes(Application.dataPath + "/../SavedScreen.jpg", bytes.ToArray()); } }